1103321028 has 24 divisors (see below), whose sum is σ = 2576181888. Its totient is φ = 367521376.

The previous prime is 1103321027. The next prime is 1103321033. The reversal of 1103321028 is 8201233011.

It is a junction number, because it is equal to n+sod(n) for n = 1103320995 and 1103321013.

It is not an unprimeable number, because it can be changed into a prime (1103321027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12876 + ... + 48707.

It is an arithmetic number, because the mean of its divisors is an integer number (107340912).

Almost surely, 2^1103321028 is an apocalyptic number.

It is an amenable number.

1103321028 is an abundant number, since it is smaller than the sum of its proper divisors (1472860860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1103321028 is a wasteful number, since it uses less digits than its factorization.

1103321028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63083 (or 63081 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1103321028 is about 33216.2765523169. The cubic root of 1103321028 is about 1033.3179296582.

Adding to 1103321028 its reverse (8201233011), we get a palindrome (9304554039).

The spelling of 1103321028 in words is "one billion, one hundred three million, three hundred twenty-one thousand, twenty-eight".